Browse Mastiff puppies for sale in Magherafelt, County Londonderry, including KC registered and health-tested puppies with photos, prices and full breeder details.
Puppies available from licensed and trusted breeders in the local area, alongside experienced dog owners, with new litters added daily.
Many puppies are also available in nearby areas such as Antrim, Ballymena and Coalisland, making it easy to find Mastiff puppies for sale close to Magherafelt and across County Londonderry.
4Its not about the dog you want, its about the owner she needs. She'll be her best self with a woman owner. She was born on 1st February 2025 She's a Mastiff cross and very loyal. I'm moving, I can't take her to my new place. Loves to play with tennis balls and go on long walks. She has 2 meals a day - Wainwright wet and dry food She gets X3 walks per day She doesn't really get
£600
Ella Active Today
Private seller • Newcastle, County Down (48mi)
Similar results from outside your search
5Dew to a job change have to sell my dog
£500
Mad
Private seller • Linlithgow, West Lothian (153mi)
5It's important to remember that any puppy that is advertised as 'Ready to leave now' must be microchipped before being sold by law.
Although not illegal to sell younger, it is also Highly recommended that a puppy does not leave their mother or siblings before being at least 8 weeks old. Generally, 8-12 weeks old is considered the best age to buy or sell a puppy.
Based on our internal marketplace analysis from the last 6 months, a Mastiff puppy typically costs between £450 and £650, with an average price of £550. Note that premium prices usually reflect Kennel Club (KC) registration and litters from parents with verified health tests, such as hip and eye scores, which we strongly recommend for health security. Market data verified: 26th March, 2026
You can find Mastiffs through our localized search, which filters for licensed and Kennel Club Assured Breeders in and around the Magherafelt area. Under UK law, any breeder producing three or more litters a year must hold a local council license. We recommend always visiting the puppy at the breeder's home to view the license and observe the mother (Dam) interacting with the litter to ensure high welfare standards.
Key things include health checks, vaccinations, pedigree documents, breeder reputation, and the puppy's temperament. Our site features detailed adverts and breeder profiles to help you make an informed decision. Read our Mastiff Buyers Guide for more information.
Licensed breeders meet high standards for animal welfare and breeding ethics. mastiff-owners.co.uk highlights licensed breeders so you can trust you're getting a well-cared-for puppy.